






Technisches GebietTechnical area
Die Erfindung betrifft eine insbesondere zweistufige Filtervorrichtung zum Abscheiden von flüssigen und/oder festen Partikeln aus einem zu reinigenden Gasstrom, insbesondere einen zweistufigen Luftfilter für eine Brennkraftmaschine, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a particularly two-stage filter device for separating liquid and / or solid particles from a gas stream to be cleaned, in particular a two-stage air filter for an internal combustion engine, according to the preamble of claim 1.
Stad der TechnikCity of technology
Eine Filtervorrichtung gemäß dem Oberbegriff des Anspruchs 1 ist aus der Druckschrift
Der Erfindung liegt die Aufgabe zugrunde, ein Filterelement der eingangs genannten Art so weiterzubilden, dass das Hauptfilterelement bewegungsfrei im Filtergehäuse angeordnet ist und dass insbesondere ein Herausfallen des Filterelements aus der Filtervorrichtung bei Überkopfmontage verhindert wird.The invention has the object of developing a filter element of the type mentioned so that the main filter element is arranged motionless in the filter housing and that in particular falling out of the filter element is prevented from the filter device in overhead mounting.
Offenbarung der ErfindungDisclosure of the invention
Diese Aufgabe wird durch eine Filtervorrichtung mit den im Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen und zweckmäßige Weiterbildungen der vorliegenden Erfindung sind in den Unteransprüchen gekennzeichnet.This object is achieved by a filter device having the features specified in claim 1. Advantageous embodiments and expedient developments of the present invention are characterized in the subclaims.
Mithin basiert die vorliegende Erfindung darauf, dass das Hauptfilterelement bzw. Primärelement mindestens ein Halteelement aufweist, das die Lage des Hauptfilterelements im Filtergehäuse stabilisiert. Dieses Halteelement verläuft ausgehend von einer Umfangsseite des Hauptfilterelements in Richtung zum Filtergehäuse und ist dazu ausgebildet, das Hauptfilterelement in definiertem Abstand zum Filtergehäuse anzuordnen. Das Halteelement verhindert somit, dass sich das Hauptfilterelement im Filtergehäuse bewegt.Thus, the present invention is based on the fact that the main filter element or primary element has at least one holding element which stabilizes the position of the main filter element in the filter housing. This holding element extends from a peripheral side of the main filter element in the direction of the filter housing and is adapted to arrange the main filter element at a defined distance from the filter housing. The holding element thus prevents the main filter element from moving in the filter housing.
Vorzugsweise weist das Hauptfilterelement vier an seinen jeweiligen Umfangsseiten angeordnete Halteelemente auf, wobei jeweils zwei dieser Halteelemente sich im Wesentlichen einander gegenüberliegen oder einander schräg gegenüberliegen.Preferably, the main filter element has four holding elements arranged on its respective circumferential sides, wherein in each case two of these holding elements are substantially opposite one another or opposite one another at an angle.
Neben der Stabilisierung des Hauptfilterelements im Filtergehäuse kann das Halteelement auch dazu dienen, ein unerwünschtes Herausfallen des Hauptfilterelements aus dem Filtergehäuse, beispielsweise beim Öffnen des Filtergehäuses, zu verhindern. Zu diesem Zweck weist das Filtergehäuse mindestens eine ausgehend von der Umfangsseite des Filtergehäuses in Richtung zum Hauptfilterelement verlaufende Erhöhung auf, die das Halteelement abstützt und ein selbständiges Herausfallen des Hauptfilterelements aus dem Filtergehäuse verhindert.In addition to the stabilization of the main filter element in the filter housing, the retaining element can also serve to prevent unwanted falling out of the main filter element from the filter housing, for example, when opening the filter housing. For this purpose, the filter housing has at least one extending from the peripheral side of the filter housing in the direction of the main filter element increase, which supports the holding element and prevents an independent falling out of the main filter element from the filter housing.
Damit das Hauptfilterelement auf einfache Weise in das Filtergehäuse eingesetzt bzw. aus diesem entnommen werden kann, ist das Halteelement vorzugsweise aus elastischem Material, beispielsweise aus Polyurethan, gebildet. So kann das Halteelement beispielsweise mit etwas erhöhtem Kraftaufwand über die Erhöhung des Filtergehäuses hinweg bewegt werden.So that the main filter element can be inserted into or removed from the filter housing in a simple manner, the retaining element is preferably formed of elastic material, for example of polyurethane. For example, the holding element can be moved over the increase in the filter housing with a little increased effort.
In einer Ausführungsform ist das Filtergehäuse anströmseitig mit einem Vorbauteil versehen, wobei das Vorbauteil als Zyklonvorabscheider, Schutzgitter, Ansaugkrümmer oder Rohluftleitung ausgebildet ist.In one embodiment, the filter housing is provided on the inflow side with a Vorbauteil, wherein the Vorbauteil is designed as Zyklonvorabscheider, protective grille, intake manifold or blank air line.
In einer vorteilhaften Ausführungsform weist der Zyklonvorabscheider mehrere kleine Einzelzyklone auf. Ein derartiger Vielzellenzyklon oder Multizyklon, der zum Vorreinigen des Gasstroms eine Vielzahl von Leitschaufeln aufweist, die den Gasstrom in Rotation versetzen, ist beispielsweise in der Druckschrift
Als Hauptfilterelement bzw. Primärelement, welches im Filtergehäuse aufgenommen ist, kommt beispielsweise ein Kompaktluftfilter mit einer Vielzahl von im Bereich der einlassseitigen und auslassseitigen Endflächen wechselseitig verschlossenen Kanälen, die durch das Aneinanderlegen einer Glatt- und einer Weltlage gebildet werden, in Betracht, bei dem der Gasstrom linear durch die Filterkanäle geführt wird. Alternativ kann ein Ein- oder Mehrfachbalgfilter mit ringförmig geschlossenen, zick-zack-förmig gefalteten Filterbälgen, vorzugsweise ein Doppelbalgluftfilter mit einem um ein kleineres Ringfilterelement angeordneten, größeren Ringfilterelement, oder ein zick-zack-förmig gefaltetes, ebenes Filterelement verwendet werden.As a main filter element or primary element, which is accommodated in the filter housing, comes for example a compact air filter with a plurality of in the region of the inlet side and outlet end surfaces mutually closed channels, which are formed by the juxtaposition of a smooth and a world situation into consideration, in which the Gas flow is guided linearly through the filter channels. Alternatively, a single or Mehrfachbalgfilter with annularly closed, zig-zag folded filter bellows, preferably a Doppelbalfluftfilter with a arranged around a smaller ring filter element, larger ring filter element, or a zig-zag folded, flat filter element can be used.
Das Filtermedium ist vorzugsweise im Wesentlichen ringförmig oder oval. Beispielsweise kann, wie in der Druckschrift
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Wie bereits vorstehend erörtert, gibt es verschiedene Möglichkeiten, die Lehre der vorliegenden Erfindung in vorteilhafter Weise auszugestalten und weiterzubilden. Hierzu wird einerseits auf die dem Anspruch 1 nachgeordneten Ansprüche verwiesen, andererseits werden weitere Ausgestaltungen, Merkmale und Vorteile der vorliegenden Erfindung nachstehend unter anderem anhand des durch die
Es zeigt:It shows:
Gleiche oder ähnliche Ausgestaltungen, Elemente oder Merkmale sind in den
Ausführungsform(en) der ErfindungEmbodiment (s) of the invention
Bei der in
Das Filtergehäuse
Der Zyklonvorabscheider
In den
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
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